Improvement in boilers for cooking



4 W. E.ARNoLD. l Boiler for Cooking. No'. 217,314; f Patented July-s, 1879.

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N PETERS, PHUTO-LWHOGRPHE, WASHINGTON D C PATENT OEEIoE WILLIAM E. ARNOLD, OF ROCHESTER, NEW YORK.

IMPROVEMENT IN BOILERS'FOR COOKING.

Specication forming part of Letters Patent No. 217.314, dated July 8, 1879 applicationiled September 12, 1878.

To all whom it may concern:

Be it known that I, WILLIAM E. ARNOLD, of Rochester, in the county of Monroe and i State of New York, have invented a new and W avoid the loss of time and fuel which is necessary in heating a large body of water. To this end I employ, in connection with the boiler and kettle, an external water-reservoir and a heating-reservoir beneath it, so arranged that the water is fed down from the upper into the lower reservoir, where it becomes heated in a small body, and thence passes to the boiler.

The invention consists in the construction and arrangement hereinafter more fully `set forthm In the drawings, A represents the boiler, and B the kettle. The boiler is opentopped, and the kettle, which sits therein and contains the material to be cooked, is closed, and may be ot' any desired form, but preferablyT substantially as shown.

Gis the supply-reservoir, located outside of the boiler, and consists ot' outer and inner rims and a closed bottom, which hold the main body ot water. D is the heating-reservoir, consisting of a thin vessel, which rests over the tire andreceives the direct action of the heat. G G are connections or bearings between the heating and the supply reser-- ting out openings in the bottom of reservoir O, which t over the bosses, and then soldering the parts together. Small holes H H are made through the bosses, leading from the upper to the lower reservoirs, so that as fast as the water in the heating-reservoir is eX- hausted by steam or evaporation its place is supplied by the water running down from the upper reservoir. By this means the small body of water in the lower reservoir becomes highly heated in very little time, while that in the upper reservoir remains comparatively cool.

The heating-reservoirD. communicates with the bottom of. boiler A by suitable passages F, which allow the heated water to rise in boiler A to the same height that in stands in reservoir O. The open bottom of the boiler A may be carried down only on a level with the top ot' the heating-reservoir D, leaving the whole passage between the boiler and heatingreservoir open; or, it' desired, iianges may be run down from the bottom of the boiler to the bottom of the reservoir, closinga portion of said passage, but leaving a sufficient number of the openings F to allow proper ingress ot' the hot water. Vhere such flanges are used they serve as stops to the direct passage ot the heated water, and cause the Alatter to take an indirect or circuit-ous route, by which it becomes more highly heated. Where the flanges are not used a greater number ofthe bearings Gr and holes H may be distributed over the bottom ofthe supply-reservoir to equalize the heating effect.

What I claim as new is- 1. The combination of the supply-reservoir O and heating-reservoir D, located one above the other, and holes` or passages H H connecting the two without valve or stop-stock, whereby the water is fed automatically from the supply-reservoir to the heating-reservoir, as herein shown and described.

2. The combination, with the boiler Al and kettle B, substantially as described, of the i supply-reservoir C and heating'reservoir D, connected by the holes or passages H H, as and for the purposes specied.

WILLIAM E. ARNOLD. Witnesses:

HOBART G. ARNoLD, HARRIET H. ARNOLD. 

